Locale site changes being in progress, can I request some kind of menu bar synchronization between locale sites and locale forums, so that the menu is the same on the forums? At https://pl.wordpress.org/ we have a link to the forums in the main menu, but if you click it, you get an entirely new main menu, provided by bbPress. Can this be changed somehow?

I merged the headers themselves — site title, design, etc. Not yet there on the menu. Unfortunately it is not something that is feasible (especially to keep them sync’d) until we move to bbPress 2.0. But I hope that can happen in the next month.

It’s not very clear what licence the translations fall under, judging from the PO file headers generated by GlotPress. It’s also not clear what the project is, though the PO files probably aren’t published anywhere aside from the translation packages. Another thing is that there should be a notice saying “by submitting your translations you agree that you’re licensing them under the GNU GPL” or a checkbox that you mark upon registration, so that the translations are actually licenced to be distributed with WordPress.

Were any strings added to the “Development” branch and the subprojects contained therein after the release of 3.5? I don’t know if I should worry about them or not in regard to building a package with 3.5.

Not so much, but it’s only my own opinion. It is not clear what people are donating to and how that affects the translation effort. I’d consider setting up a community site, if you don’t already have one, and accept and explain the donation logic there.

I should probably remove them from makepot. There’s no need to translate them. We don’t actually display the list of tags for a theme in the UI anymore, but if we did, WP_Theme intersects a theme’s tags with the list of official tags you already translate for the theme installer, and then uses those localized strings.